What causes dogs fur to fall out

Many conditions can cause a dog’s fur to fall out or become patchy. Some may be serious health problems, while others are simply a side effect of factors like genetics and age. The most common causes of hair loss in dogs are allergies, parasites, hypothyroidism, hormonal imbalances, trauma, bacterial or fungal skin infections, ringworm, chemotherapy treatments, heat stress and even food intolerance. In some cases the fur will grow back while in other instances veterinary treatment may be necessary. Allergies are the most common problem causing excessive shedding or baldness. Dogs can experience an allergic reaction to various substances such as pollen or flea saliva which cause the body to produce an antibody called IgE which leads to itching and dermatitis that can result in disrupted hair growth and hair falling out. Parasites such as mange mites may live on the skin causing irritation and damaged patches of fur that result in severe shedding or complete hair loss in certain parts of the body if left untreated. Flea infestations can also cause red itchy areas that often lead to extensive hair loss due to scratching blocking new follicle growth. Hypothyroidism is caused by dysfunction of the thyroid gland leading to poor cell metabolism throughout the body including those responsible for producing new hairs on a dogs coat. Many medications used for cancer treatments such as radiation or chemotherapy can also lead to alopecia where all of the existing fur falls out with new follicles not regenerating until course has been completed and affected tissue restored with antioxidants supplements seresto flea collar and other therapies provided by your veterinarian.


If you’ve noticed that your dog’s fur is starting to fall out, it can be a cause for concern. After all, it may indicate a health problem. So what causes dog’s fur to fall out? To answer this question, we’ll have to take a look at the potential causes of your dog’s hair loss.

There are many different reasons why your pet might be experiencing hair loss. It could be due to health conditions such as parasites, allergies or fungal infections. It could also be caused by poor nutrition, too much grooming or even stress and anxiety. In some cases, age-related issues may also contribute to hair loss in dogs.

No matter what the cause of your pet’s hair loss is, it’s important to take them to the vet for an examination so they can pinpoint the root cause and help you find an effective way of treating it.

Causes of Fur Loss in Dogs

Fur loss in dogs can have many underlying causes, ranging from allergies to infection to parasites. It’s important to understand exactly why your pet may be losing its fur so that you can take the appropriate steps to help them get better.

One common cause of fur loss in dogs is parasites. These pests include fleas, ticks, mites and lice. These parasites are difficult to detect as they are often very small, but they will make your dog itch and scratch incessantly. This can lead to further skin irritation and fur loss if not treated promptly.

Another possible cause of fur loss in dogs is allergies. Dogs can develop allergies from exposure to things like chemicals or even just pollen in the air. Other medical conditions, such as autoimmune diseases or endocrine issues, can also manifest themselves as an allergy-like response causing patches of fur loss on your pet’s body.

Finally, some infections are responsible for pet fur loss too. Bacterial infections like pyoderma can cause significant hair loss due to pustules forming along the fur line before touching up with your pup’s coat entirely shed out when it heals. Fungal or yeast infections may also be present if your pet has itchy rashes accompanied by bald spots of fur anywhere on their body; these need mite medication from a vet before they clear up completely and new hair regrows at full length again


If your pup is losing its fur, it may be due to a sensitivity or allergy. Allergies are usually caused by something the dog is coming in contact with, whether it’s food, a drug, an insect bite, or something in the environment.

Common signs of allergies include itchy skin and excessive scratching, licking or chewing. This can lead to bald spots on the fur and sores from too much biting, licking and rubbing. If left untreated, these sores could become infected with bacteria or fungus and even cause hair loss. Additionally, dogs who suffer from allergies often experience excessive shedding which may look like their fur is falling out.

Because identifying what causes allergies isn’t always easy—and involves some trial and error—the best approach is to take your pup to the vet for an examination so they can diagnose and treat any underlying issues causing their sensitive skin. With treatment and proper care of your pup’s coat, you should soon see less hair loss.

Cushing’s Disease

Cushing’s Disease is a disorder of the adrenal glands that often causes problems in dogs. Symptoms include excessive thirst and urination, a voracious appetite, lethargy, hair loss, and a pot-bellied appearance. The disease is caused by over-production of a hormone called cortisol or from an abnormally high concentration of it.

If your dog’s fur is falling out in patches or thinning all over their body, there’s a chance they may have Cushing’s Disease. The best way to diagnose Cushing’s is to have your dog’s blood tested for cortisol levels. If elevated levels are found, then the vet can perform further testing to determine if the dog truly has Cushing’s disease.

Unfortunately there is no cure for this disorder, however treatment and regular monitoring of it can help maintain the symptoms while keeping your furry friend healthy and happy.

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